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Dr.Prepare Trolling Motor Smart Battery Box with USB, 12V/24V Cigarette Lighter, and Anderson Ports, Group 31 Marine Battery Box, Power Center (Battery Not Included)

Transform your battery into a portable power hub with the Dr.Prepare All-in-One Smart Battery Box. Designed for 12V/24V applications, it features dual USB ports, a 12V/24V cigarette lighter socket, and dual Anderson connectors—making it perfect for marine use, trolling motors, boats, camping, and more. (Battery not included.)

Built for the outdoors, this rugged battery enclosure protects against water, dirt, oil, gasoline, and UV exposure, helping extend battery life and enhance safety in harsh environments.

Crafted from impact- and corrosion-resistant materials, each box includes a sturdy base to secure the battery, plus a removable lid for easy access and cable management. Whether you're on the water or off the grid, this box is your reliable power solution.

Description

【Trolling Motor Smart Battery Box】 Compatible with 12V/24V deep cycle battery systems (Battery Not Included). Fits Group 31, 27, and 24 batteries, with a maximum carrying capacity of 77 lbs (35 kg). Ideal for marine trolling motors, RVs, camping, solar setups, and other outdoor adventures that require a reliable off-grid power solution.
【All-In-One Marine Battery Box】 Equipped with a 12V/24V cigarette lighter socket, USB-C PD, USB-A QC 3.0, dual Anderson input/output ports, and high-current terminal connectors. Just place your battery inside to instantly turn it into a versatile, portable power center — perfect for marine, RV, or off-grid use.
【Intelligent Protection & Real-Time Monitoring】 Each Anderson port is protected by a 30A replaceable blade fuse to guard against overcurrent (replacement fuses not included). A 10A resettable circuit breaker protects the USB ports and cigarette lighter socket from overload. Use the On/Off power switch to eliminate standby power consumption when not in use. The LED screen displays real-time battery voltage and alerts you to low voltage conditions.
【Durable, Portable & User-Friendly】 Built for tough environments, the box shields your battery from water, dirt, oil, gasoline, and UV rays—and is engineered to resist impact, corrosion, and extreme temperatures to extend battery life and enhance safety. Dual side handles make it easy to lift and carry, while rubber port covers protect against water and dust. Use the included strap and mounting hardware to keep the battery box secure during transport or use.
【Important Usage Reminders】 Do not connect a solar panel directly to the Anderson port — always use a charge controller to avoid damaging the battery. Turn off the power switch when not in use to prevent standby power drain (approx. 70mA per hour). Do not lift this waterproof battery box using the secure strap — always use the dual side handles for safe handling.

Key Features

Package Includes

Smart Battery Box x 1
Securing Strap x 1
Securing Accessories X 1 Set
User Manual x 1

Specifications

Smart Battery Box Specifications
General
Suitable Battery Type	12V/24V deep cycle batteries
Rated Maximum Carry Weight	77 lbs / 35 kg
Suitable Battery Size	Group 31, Group 27, Group 24 Note: If the battery is smaller, secure it by filling the gap with non-conductive material
Box Internal Dimensions	13.39 x 7.68 x 8.86 in / 34 x 19.5 x 22.5 cm
Box External Dimensions	15.75 x 9.25 x 11.61 in / 40 x 23.5 x 29.5 cm
Box Net Weight	3.97 lbs / 1.8 kg
Operation Temperature	14°F to 122°F (-10°C to 50°C)
Connectors/Ports
USB-C PD	5V/3A (15W), 9V/2A (18W), 12V/2.5A (30W)
USB-A QC 3.0	5V/2.4A (15W), 9V/2A (18W), 12V/1.5A (18W)
Cigarette Lighter Socket	12V/10A, or 24V/10A (varies based on battery voltage)
Anderson Input / Output	Max 30A per port, 50A in total
Note: When using USB-C and USB-A simultaneously, total output is limited to 30W
Warranty
1 Year Material and Workmanship Warranty
Package Contents
Smart Battery Box × 1 Securing Strap × 1 Securing Accessories × 1 Set User Manual × 1

Does it come with a battery?

No, it doesn't. This is a battery box only and is designed to fit 12V or 24V deep cycle battery systems. If you're looking for a LiFePO4 battery, you can find compatible options in our store.

Does it have overload protection?

Yes, it does. Each Anderson port is protected by a 30A replaceable blade fuse to prevent overcurrent (replacement fuses not included).

There's also a 10A resettable circuit breaker that protects the USB ports and cigarette lighter socket from overload. It automatically trips during a short circuit and can be manually reset.

Is it waterproof?

Yes, the battery box is water-resistant and dustproof, making it ideal for marine, trolling motor, and RV applications.

Can it charge a phone?

Yes, it can. The battery box includes both a USB-C PD and a USB-A QC 3.0 port, perfect for charging smartphones and other devices. Just make sure a battery is installed inside the box for the ports to function.

Does it have low voltage protection?

A "Di-Di-Di" sound alert is triggered when the battery voltage drops to 11.1V or below, letting you know it's time to recharge and protect your battery from over-discharge.